Automobile-truck.



(I. Q. PRIMM. AUTOMOBILE TRUCK. APPLIoATIo FILED SEPT. 2a, 41911.

Patented sept. '3, 191.2.-

JOHN o. PRIMM, or LINCOLN, ILLINOIS.

.AUTOMOBILE-TRUCK.

Speeiication of .Lettersv Patent.

Patented Sept. 3, 1912.

Application lil-ed September 28, 1911. Serial No. 651,880.

To all whom, may concern: l

Be it known that I, JOHN PRIMM, a citizen of the United States, residing at Lm coln, in the county of Logan and State of" Illinois, have invented.. a new and useful Automobile-Truck, of which the following is a'specitication.

The present invention relates to improvements in automobile trucks, the primary object of the invention being the provision of a simple and durable portable form of truck, the same comprising a portable lower frame andan anti-frictionally mounted ymovalole upper frame disposed thereupon and provided with novel meansfor moving the same relatively to the lower frame, the antifric tional means between the respective frames being so disposed as to cause the upper frame to move upwardly in parallel position during its movement toward and from the windlass mounted upon the main frame.

A further object .of the present invention is the provision of an automobile truck con1- prising two frames the lower frame of which is a rigid frame mounted upon casters while the upper frame thereof is mounted so as to have imparted thereto i longitudinal and upward movement when moved with relation to the main frame, the

said upward movement having a tendency to act as a jack to lift the automobile relatively to the main frame or permit the depositing of the same upon the ground when desired.

-\Vith the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood lthat changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention. In the drawings :-Figure 1 is a perspective view of the complete truck. Fig. 2 is a side elevation thereof with the windlass shown in collapsed position. Fig. 3 is an enlarged detail sectional view of one of the anti-frictionally disposed bearings between stationary and movable,` frames employing a ball.

Referring to the drawings, the numeral 1 designates the casters which support the two longitudinal strips 2 of the lower main frame, the said strips being connected together and held in rigid parallelism by means ofthe bars 3,3', 4 and 5.

' Disposed upon the respective bars or side Astrips 2 of the main frame at one end thereof and near the other end thereof are the two blocks 6,. which as shown in detail in Fig. 3 of the drawings, are each provided with the upper face a which is parallel to the upper face of the st-rip 2, the intermediate inclined face b, and the lower flat face or plane c which is parallel kto the upper face of the strip 2 and the face a-but ata lower plane. Each one of these blocks 6 is provided with the groove 7, in which lis adapted to be mounted for anti-frictional movement the ball bearing 8, which fits within the groove 9 of a similarly shaped block 10 carried upon the under side of the longitudinal strips 1l of the upper or movable frame of the truck. These grooves 7 are provided with the upper planes af, the inclined face 7) and the parallel face c', these respective faces being in alinement or in parallel with the respective faces a, b and c of the blocks 6.

The longitudinal strips 11 of the movable frame are held relatively together and in parallel by means of the transverse bars 12 l and 13y and by reason of the fact that there are four pairsof the blocks G and 10, which support the movable frame at four points upon the main or lower frame, through the l medium of the balls 8, it is evident that an anti-frictional bearing is formed between `these blocks.

By this arrangement, any longitudinal movement of the upper frame` upon and relative to the lower frame, due to the blocks G and 10 and the balls S, will elevate or lower -the upper movable frame. By means of the grooves and the balls S, it

`is evident that the movable frame is prevented any sidewise movement, the balls l wit-hin the grooves holding the frames relatively to each other so that any movement imparted to the upper frame lifts or lowers the upper movable frame in parallel from and toward the lower stationary frame..

Carried by the cross bar 5 of the sta- .tionary or main frame, are two eyed lugs or brackets 14, which by means of the rod 15 form a hinge connection "for the uprights 1G which are held relative to each other by means of the cross piece 17 the windlass 18' with its crank 19 being journaled in the upper end of said standards and being permitted a swinging movement to or from full lines in Fig. 2 to full lines in Fig. 1. In order to do this 'and permit the windlass frame to assume the positions as shown, a sectional or hinged brace is employed, the same havir its lower end connected by hinge 20 to t e transverse bar 4 of the lower `frame -and having its lower section 21 Aconnected by a. hinge 22 to the uper sec on 23, which is hinged to the windass 'frime to permit the same to assume a desired position.

Connected to the cross piece 17 at the upper end ofthe posts 16 is a pulley and sheave- 24, while connected to the transverse strip 13 of the movable frame is a block and tackle 25, to which is connected the cable 26 which is threaded through the respective pulleys and 'is connected rigidly at one end to the cross piece 17 while its other end is wound upon the drum 18.

When the device is in use the parts assume the position as shown in Fig. 1, and when not 1n use they assume the position as shown in full lines in'Fi if.

A drip pan 28 1s mounted transversely of the lower frame to catch the dripping oils and maybe moved at pleasure.

From the foregoing description taken in connection with the drawings, it will be seen that by providing' the inclined anti-frictio'nal supports between the stationary and movable frames, any movement of the movable frame toward the windlass, due to the blocks 6 and 10 and the balls 8, will impart to the movable frame an upward and parallel movement with relation to the lower frame, a'nd that any movement in the opposite direction which will be caused by the gravity of the upper frame Awith the weight thereupon, will ca use the movable frame to move away from the windlass and to a lower level thus providing an entirely eflicient automobile truck or antoniohilc jack, which Will permit the proper elevating or lifting of an entire machine in a level position.

By reason of the fact that the device is made up of the two frames and provided with a folding windlass, which when not in use occupies a very small amount ot space, and can be quickly placed into operable position for use, only a small space 'for storage is needed and a body of an antoniobile may pass thcreover.

It .is also evident that any form o1.: moiv4 able frame may be employed and provided with proper guiding and holdingr mean@` ior retail ingr an automobile thereupon, in lhc l'n'esent instance, there simply being' shown an open iframe whoreliy the various details are more clearly shown.

ll'hat 'is claimed ist-w l.. A irueli; nii' the character described 'nig a .lower port-dile ii'alne, another disposed thereabove and movable longitudinally of the lower frame, a plurality 0f pairs of blocks disposed in co-active relation between the respective frames. the opposed faces of said blocks being so constructed as to canse the movable fraaie. to be moved to 'faces of said blocks being so constructed as to cause the movable frame to be moved t0 and from the lower frame during the longitudinal movement of the upper frame, the opposed faces of each pair of said blocks being provided with alining grooves and a ball disposed in the. respective grooves in each pair of blocks for forming an antifriotional bearing therebetween, said balls and grooves co-acting' to prevent transverse movement of the movable frame with relation to the lower frame.

3. A truck of the character described having' a lower portable frame, another frame disposed thereabove and movable longitudinally of the lower frame, a plurality of pairs oit blocks disposed in co-active relation bt-y iranie for iniliarlinar the longitudinal move- I mem' lo the movable trame.

fl.. Jl. truck oi the character described havingl a lower portable frame, another frame diszijiosed therealiove and movable longitudinalV of the lower frame, a plurality of pairs` of blocksdisposed in (fo-active relation hein-een the respective frames, the 0pposed tai-es oi. said blocks being' so constructed as lo cause the movable frame to be moved to and from the lower frame during the, longitudinal movement of the upper trame, the opposed 'Faces oi eaeh -pair of said biol-.ifs being lprovided with :dining grooves and a ball disiiosed in the, respective grooves in each pair lof blocks 'for l'ox'niing an antiiiietional bearing therebetween, said balls and grooves co-actng oo pevent zmxsvese l movement of the movable frame Wh roai as my oen, have hereto :d'xed my sigmn tion to the lowel frame, and a Wndhzss l iure in the presence oil? two witnesses. posed at one end of the lower frame and op JOHN Q.. PR'IMM.

5 erably connected to the movable rame for imparting the longitudinal movement to fue movable frame.

n ies-*hunny thaty daim the foregoing.; 

